<template>
  <div id="tags-view-container" class="tags-view-container">
    <scroll-pane ref="scrollPane" class="tags-view-wrapper">
      <el-link
        :key="item.name"
        v-for="(item) in isTabsListComputed"
        ref="tag"
        tag="span"
        :class="active(item) ? 'active' : ''"
        class="tags-view-item"
        :label="item.title"
        :name="item.name"
        :id="item.id"
        :pid="item.pid"
        @click.prevent.stop="findTab(item)"
      >
        {{ item.title }}
        <span v-if="!item.affix" class="el-icon-close" @click.prevent.stop="removeTab(item)" />
      </el-link>
    </scroll-pane>
<!--    <ul v-show="visible" :style="{left:left+'px',top:top+'px'}" class="contextmenu">
      <li @click="refreshSelectedTag(selectedTag)">刷新</li>
      <li v-if="!(selectedTag.meta&&selectedTag.meta.affix)" @click="closeSelectedTag(selectedTag)">关闭</li>
      <li @click="closeOthersTags">关闭其他</li>
      <li @click="closeAllTags(selectedTag)">关闭全部</li>
    </ul> -->
  </div>
</template>

<script>
import ScrollPane from './ScrollPane'
export default {
  components: { ScrollPane },
  computed: {
    isTabsListComputed() {
      return this.$store.state.tabs.tabsListState
    },
    isTabsFocusComputed: {
      get: function () {
        return this.$store.state.tabs.tabfocusState
      },
      set: function () {

      }
    }
  },

  data() {
    return {}
  },
  methods: {
    findTab(target) {
      if (this.isTabsFocusComputed !== target.name) {
        this.$store.commit('opentabMutations', target)
      }
    },
    removeTab(targetName) {
      this.$store.commit('removeTabMutations', targetName.name)
    },
    active(item) {
      return item.name === this.isTabsFocusComputed
    }
  }
}
</script>

<style lang="less" scoped>
.tags-view-container {
  height: 34px;
  width: 100%;
  background: #fff;
  border-bottom: 1px solid #d8dce5;
  border-top: 1px solid #f2f2f2;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, .12), 0 0 3px 0 rgba(0, 0, 0, .04);
  .tags-view-wrapper {
    .tags-view-item {
      display: inline-block;
      position: relative;
      cursor: pointer;
      height: 26px;
      line-height: 26px;
      border: 1px solid #d8dce5;
      color: #495060;
      background: #fff;
      padding: 0 8px;
      font-size: 12px;
      margin-left: 5px;
      margin-top: 4px;
      &:first-of-type {
        margin-left: 15px;
      }
      &:last-of-type {
        margin-right: 15px;
      }
      &.active {
        background-color: #42b983;
        color: #fff;
        border-color: #42b983;
        &::before {
          content: '';
          background: #fff;
          display: inline-block;
          width: 8px;
          height: 8px;
          border-radius: 50%;
          position: relative;
          margin-right: 2px;
        }
      }
    }
  }
  .contextmenu {
    margin: 0;
    background: #fff;
    z-index: 3000;
    position: absolute;
    list-style-type: none;
    padding: 5px 0;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 400;
    color: #333;
    box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, .3);
    li {
      margin: 0;
      padding: 7px 16px;
      cursor: pointer;
      &:hover {
        background: #eee;
      }
    }
  }
}
</style>

<style lang="less" scoped>
//reset element css of el-icon-close
.tags-view-wrapper {
  .tags-view-item {
    .el-icon-close {
      width: 16px;
      height: 16px;
      vertical-align: 2px;
      border-radius: 50%;
      text-align: center;
      transition: all .3s cubic-bezier(.645, .045, .355, 1);
      transform-origin: 100% 50%;
      &:before {
        transform: scale(.6);
        display: inline-block;
        vertical-align: -3px;
      }
      &:hover {
        background-color: #b4bccc;
        color: #fff;
      }
    }
  }
}
</style>
